Cultivator.



H. J. KUHLMA'N.

GULTIVATOR.

APPLICATION FILED 1320.5, 191s.

ML3,@ I Patented Jan.5,1915.

2 SHEETS-SHEBT 2.

HE NORRIS PETERS C0.. PHOTO-LITHQ. WASHINGTON. D. C

HENRY 1T. KUHLMAN, OF QOLESBURG, IOWA, ASSIG-NOR TO JOI-IN W. HOLSCHER, OF

" EARLVILLE, IOWA.

CULTIVATOR.

Application led December 5 To all whom t may concern `Be it known that I, HENRY J. KUHLMAN, a citizen of the United States of America, and a resident of Colesburg, Delaware lcounty, Iowa, have invented certain new and useful Improvements in Cultivators, of which the following is a specification.

My invention relates to improvements in corn-cultivators, and the object of my improvement is to so mount the shovel-gangs of a wheeled corncultivator that there will be an approximate equalization of throw in the differently located shovels of the gangs when the gangs are shifted laterally. This 'object I have accomplished by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which:

Figure 1 is an upper plan view of a corncultivator equipped with my improved mountings for the shovel-gangs, parts being broken away to better disclose the construction. y Fig. 2 is a side elevation of said corncultivator with the hither carrying-wheel removed and taken on a cross section of the hither axle and its sleeve.

Similar numerals of reference denote corresponding parts throughout the several views.

The shovel-gangs of the wheeled cultivator shown are mounted in the improved manner of my invention, and are in operative connection with mechanism for shifting them laterally, said last-mentioned mechanism being here shown and described but not claimed, since it is incorporated in a co-pending application Serial No. 804,878, filed Dec. 5, 1913.

My improved cultivator has a medially .bowed axle 24 upon whose horizontallydirected spindles are rotatably mounted the hubs of the carrying-wheels 25. Frictionrims 39 are mounted concentrically upon the inner faces of both carrying-wheels. Upon each axle-spindle 33, and rotatable adjacent to the inner face of each carrying-wheel hub, a sleeve 32 is mounted rotatably thereon and provided with integral radial arms38 having inwardly-directed radially oriiced heads 37 adapted to slidably receive the friction-heads 36, whose inner ends are pivoted to links 35, the latter pivoted to lugs on the collar 34 mounted slidably upon the sleeve 32, and having an annular groove in its extreme periphery adapted to movably receive Specification of Letters Patent.

the ends of a fork on the lever 40, which latter is intermediately pivoted to lugs on the frame-bar 6.

rllhe numeral 28 denotes the horizontal walking-beam mounted on the rear end of a horizontal longitudinal rock-shaft, which latter is mounted in hangers on the tongue 23. Links 41 are pivotally connected between the outer ends of the walking-beam 28 and the inner ends of the lever 40. Rods 27 are suspended from the ends of the walking-beams 28 and provided with stirrups 26 at the lower end.

The numeral 29 denotes a two-part body, whose parts are connected together ixedly and mounted to rock upon the vertical parts of the medially bowed portion 24 of the axle. A fixed horizontal arm 44 is secured to each of said bodies 29 to project forwardly, and has its forward end 45 bent down at a right angle.

The numeral 1 denotes a gang-frame having a rearwardly extending bar 2 whose rear end has a swivel connection 3 with a cross-bar 4 for horizontal play. An upright 8 is fixedly connected to the middle of the cross-bar 4'and has the drivers seat 9 upon its upper end.

The numeral 6 denotes a forwardly extending frame-bar, whose rear end has a loop 5 passed about the end of the cross-bar 4, the middle part of the bar 6 resting upon the axle, and having its forward end secured to a cross-bar 42, which is supported in hangers on said tongue 23. By this means,

the cross-bar 4 is supported, and braces 7,

.between the bars 6 and the upright 8 hold the latter ixedly erect.

The numerals 16-17 denote linked alined rods, the rear end of the rod 16 being pivotally connected to the center' part of the shovel-gang frame 1 2, while the forward end of the rod 17 is adj ustably pivotally connected in one of the vertically alined orilices 19 of the hanger 18 from the tongue 23, said hanger being linked at 20 to a lower part of the hanger 21, also suspended from said tongue fixedly, the link 20 being adapted for adjustment in the orifices 22 and 19 of said hangers. The lower end of each bar 45 is slidably received in a bearing-orifice in a bearing-casting 46 in each gang-frame 1. Each gang-frame 1 has fixed depending shovel-Shanks 10--11-12, upon which are secured the shovels 13, 14 and 15, respecraam f6@ Patented Jan. 5, 1915.

, 1913. serial No. 804,879.

tively, with ythe shovels arranged as indicated in Fig. 1 with the forward shovels farthest from the carrying wheels, the rearmost shovels nearest said carrying-wheels and the intermediate shovels intermediately located between the other shovels. Each sleeve 32 has depending integral arms connected by means of a rack-sector 30, which is in mesh with a rack-sector 31 integral with arms depending from the adjacent rock-body 29.

The driver may shift the shovel-gangs laterally to a desired amount by simply depressing the stirrup 26. This is eected by the above described mechanism in the following manner: vWhen one of the stirrups 26 is pushed downwardly, the end of the walking-beam 28 on the same side is rocked downwardly, which causes the link 41 to rock the lever 40 in such a way as to act upon the collar 34 adjacent thereto, to shift the friction-heads 36 into frictional engagement with the abuttingfriction-rim 39. The rotating wheel 25 causes said rim to impart rotation to said parts, to the sleeve 32 and the rack-sector 30 with its meshed racksector 31, to rock the body 29 to cause the arm 45 to swing the connected gang-frames 1 to one side, a distance determined by the amount of travel of the said rack-sectors, conditioned by the length of time the stirrup is depressed. On the release of the stirrup, the gangs remain in the same position until the opposite stirrup is depressed to shift them oppositely. Attention is called to the novel method of mounting the said gang-frames 1 so that they may swing from the cross-bar 4 in the rear of the carrywheels, the forward draft being applied to said gang-frames through the means of the connected alined links 16-17, which are pivotally connected to a rear part of the gang-frames at a. location about midway between the pivotal connection of the arm 2 `with the cross-bar 4 and the forward end of the gang-frame. This method of supporting and mounting the gang-frames at a point considerable in the rear of the axis of the carrying-wheels has the effect of approximately equalizing the sidewise movements of the shovels 13, 14 and 15 in each gang, when the gang-frames 1 are laterally shifted. In other words, the equalization of the lateral travel of said shovels permits of all the shovels being shifted nearly the same distance when the gang-frame is shifted laterally, and this is very useful when the gang-frame is shifted laterally by the driver, for the purpose of causing the forward inner shovel 13 to miss the hill of corn which may copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

be somewhat out of alinement in a row. On account of the said equalization of travel, the shovels 14 and 15 do not travel so much to one side as if they were mounted in a frame which was pivoted in front of the axis of the carrying-wheels, and therefore, while the adjusting permits the shovel 13 to miss such a misplaced hill, the other shovels in the gang are enabled to cultivate without interfering with the other hills in the row. The locationkof the draft-connection midway on the lever, formed by the connected parts 1 and 2 also tends to keep the shovels approximately in the same positions relative to the ground surface, with an equal draft upon each end, without danger of either being lifted out of the ground more than the others.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. In a cultivator, a main-frame mounted on carrying-wheels and having a rearward extension, a shovel-gang frame having a rearwardly projecting ixed arm whose rear end is swingingly connected to the rear end of said extension for lateral movements, said connection being located in the rear of the gang-frame and spaced therefrom, and a draftconnection hitched approximately midway between the forward end of said gang-frame and its said rear connection to said extension, causing the shovels to be shifted approximately equal distances when the gang-frame is shifted laterally.

2. In a eultivator, a main-frame supported on carrying-wheels, a shovel-gang frame mounted movably in said frame for lateral movements, the connection thereof to said main-frame being to the rear of the gangframe and a hitch secured to said gangframe immediately to the rear of the rearmost shovel in said gang-frame.

3. In a cultivator, a main-frame supported on carrying-wheels, shovel-gang frames connected transversely and movably mounted in said main-frame for lateral movements, the connections between said gangframes and said main-frame being in the rear of both, and draft-connections hitched movably to said gang-frames at locations approximately midway between the forward end of the gang-frames and their connections to the rear part of the main-frame.

Signed at IVaterloo, Iowa, this 19th day of Nov. 1913.

HENRY J. KUHLMAN. Witnesses:

J. F. KUHLMAN, WM. HAMMOND.

Washington, 11.0. v 

